The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 13, 1987
Filed:
May. 31, 1985
Yoichi Ino, Tokyo, JP;
Isamu Morisako, Tokyo, JP;
Anelva Corporation, , JP;
Abstract
In a mass spectrometer, a quadrupole electrode comprises four electrodes arranged at a predetermined interval about a device axis along which the mass spectrometer successively comprises an ionized gas source, the quadrupole electrode, and a detector for detecting the gas particles separated in reference to mass-to-charge ratio. At least one of the electrodes comprises a plurality of electrode elements which are divided along the device axis. Each of the electrode elements has a longitudinal axis. The electrode elements are mechanically connected by a mechanically connecting member so that the longitudinal axis are coincident with one another and parallel to the device axis. The electrode elements are electrically connected by an electrically connecting member.